Abstract: A method and apparatus for the measurement of total organic carbon content in an aqueous stream is disclosed. Absorbance of electromagnetic energy by the aqueous stream is measured in an optical sample cell with pulsed light at a wavelength of 190 nm±10 nm. A value of total organic carbon from the measured absorbance is calculated without absorbance or fluorescence measurement at any other wavelength.

Abstract: A rail draft vehicle for moving railcars along a pair of rails includes a frame having a front end and a rear end. The vehicle also has a front wheel assembly associated with the front end of the frame as well as a rear wheel assembly associated with the rear end of the frame. Each of the wheel assemblies includes an axle housing with a differential and a pair of road wheels connected for rotation relative to the axle housing. Each wheel assembly pivots as a unit relative to the frame about a vertical axis. The vehicle also includes an engine attached to the frame. In addition, a power train powered by the engine drives each of the wheel assemblies and is connected to each wheel assembly.

Abstract: A rail draft vehicle for moving railcars along a pair of rails includes a frame having a front end and a rear end. The vehicle also has a front wheel assembly associated with the front end of the frame as well as a rear wheel assembly associated with the rear end of the frame. Each of the wheel assemblies includes an axle housing with a differential and a pair of road wheels connected for rotation relative to the axle housing. Each wheel assembly pivots as a unit relative to the frame about a vertical axis. The vehicle also includes an engine attached to the frame. In addition, a power train powered by the engine drives each of the wheel assemblies and is connected to each wheel assembly.

Abstract: A method and apparatus for the measurement of total organic carbon content in an aqueous stream is disclosed. Absorbance of electromagnetic energy by the aqueous stream is measured in an optical sample cell with pulsed light at a wavelength of 190 nm±10 nm. A value of total organic carbon from the measured absorbance is calculated without absorbance or fluorescence measurement at any other wavelength.

Abstract: A storage receptacle is usable in a map pocket without requiring an intermediate adapter ring. The storage receptacle only uses part of the storage space within the map pocket, and leaves the rest of the space available for maps or other personal items. The receptacle may be dimensioned to use less than half the space of the vehicle door pocket. In a selected illustrative embodiment, a storage receptacle is adapted to receive and store glasses therein, such as eyeglasses or sunglasses. The storage receptacle includes a receptacle case made from a strong plastic material, and may also include a liner made from a material such as foam padding, cloth, and/or flocking provided on an inner wall of the receptacle case, to protect glasses which may be stored therein.

Abstract: A storage receptacle is usable in a map pocket without requiring an intermediate adapter ring. The storage receptacle only uses part of the storage space within the map pocket, and leaves the rest of the space available for maps or other personal items. The receptacle may be dimensioned to use less than half the space of the vehicle door pocket. In a selected illustrative embodiment, a storage receptacle is adapted to receive and store glasses therein, such as eyeglasses or sunglasses. The storage receptacle includes a receptacle case made from a strong plastic material, and may also include a liner made from a material such as foam padding, cloth, and/or flocking provided on an inner wall of the receptacle case, to protect glasses which may be stored therein.

Abstract: A dual use roadway or railroad travel vehicle such as a railcar mover (10) which includes an inner set (24) of wheel assemblies (28, 30) designed for alternate roadway or rail travel, together with fore and aft rail wheel assemblies (32, 34) which may be alternately retracted for roadway travel or lowered for rail travel. The wheel assemblies (32, 34) each have a pair of rail wheels (36, 38) mounted spindles (48) so that the rotational axes A of the wheels (36, 38) are oriented at an oblique angle &agr; of less than 6° relative to the horizontal H; this wheel orientation, together with a rail wheel geometry including a rim surface (40, 42) parallel with the associated rotational axis A and a reduced radius of curvature R between the rim surface (40, 42) and the flange (44, 46), significantly decreases the problem of rail wheel climb encountered with conventional movers (10), while also reducing flange wear.

Abstract: A dual use roadway or railroad travel vehicle such as a railcar mover (10) is disclosed which includes an inner set (24) of wheel assemblies (28, 30) designed for alternate roadway or rail travel, together with fore and aft rail wheel assemblies (32, 34) which may be alternately retracted for roadway travel or lowered for rail travel. The wheel assemblies (32, 34) each have a pair of rail wheels (36, 38) mounted on fixed spindles (48) so that the rotational axes A of the wheels (36, 38) are oriented at an oblique angle &agr; of less than 6° relative to the horizontal H; this wheel orientation, together with a rail wheel geometry including a rim surface (40, 42) parallel with the associated rotational axis A and a reduced radius of curvature R between the rim surface (40, 42) and the flange (44, 46), significantly decreases the problem of rail wheel climb encountered with conventional movers (10), while also reducing flange wear.

Abstract: The present invention provides for at least two levels of buffering in compensating for the delays from and out of the Unix workstation, thus achieving the required timebase correction. At the first level of buffering there is an eight Megabyte memory coupled to the VME bus of the Unix workstation over a disc simulator processor, which is sufficient to store about 45 seconds of audio data. The secondary level of data buffering is provided by an interface board which further buffers an additional 1.5 milliseconds between the first level of buffering and the second level of buffering. The outbound interface of the present invention comprises three separate registers to process the compact disc data when they are retrieved from the digital computer. Each of the registers comprises a plurality of FIFO registers. The first register receives outbound audio samples. The second register receives Q subcode data. The third register receives optionally QRSTUVW or RSTUVW subcode data.

Abstract: A power driver and method of pile driving. The invention encompasses a pile driver having a ram, cylinder and piston arrangement mounted in a framework, such arrangement being typical of those power drivers of the prior art. A compressible fluid, such as air or steam, enters into the cylinder through an intake port and leaves through an exhaust port. Both ports are controlled by a common valve. Expansion of the steam within the cylinder acts against the piston causing the piston rod to rise thus raising the ram and an associated slide bar. As the slide bar rises, it triggers the valve to move into a position effecting closure of both intake and exhaust ports. Further rising of the piston effects movement of the valve into a position wherein the intake port remains closed and the exhaust port is opened, thus exhausting the excess steam. Movement of the valve by elevation of the slide bar at each stage of movement is effected through triggering of cam followers or trips by cams on the slide bar.

Abstract: An automatic, fluid actuated, external control system for a pile hammer or the like is provided that can vary the operating stroke length of a pile hammer and that can be used to operate the pile hammer in either a continuous or single stroke mode. A series of axially spaced orifices in the hammer housing exhaust pressurized fluid from the housing in a sequence controlled by the position of the hammer piston within the housing. The orifices are coupled by conduit to a series of pressure sensitive valves external of the pile hammer. The pressure sensitive valves control the delivery and exhaust of pressurized motive fluid to and from the pile hammer in response to the position of the hammer piston within the hammer housing.